How can a shape be strong?
In: Engineering
Imagine a square. If you push the top in a lateral direction, the joints at the vertexes can change their angles away from 90 degrees, turning it into a rhombus and making the total height shorter. A structure made of squares can be distorted and eventually collapse this way. This can’t happen with a triangle, all the vertexes are stuck at their preset angle unless the sides (beams) bend or undergo heavy tension/compression. Ideally they’ll be made of a material which is highly resistant to this.
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